An electric heater draws a current of 3.5A at a potential difference of 250V . Calculate the power of 4 such heaters.
Hint:
Power P=VI
V=Voltage
I=Current
Step 1 :
Find the power of 4 heaters
Given data :
I=3.5A
p.d=250V
Power of 4 heaters
P=4×VI
P=4×250×3.5
P=1000×3.5
P=3500W
The power of 4 such heaters is 3500W.
An electric heater draws a current of 3.5 A at a p.d. of 250 V. Calculate the power consumed by 4 such heaters.
The potential difference between the terminals of an electric heater is 60V when it draws a current of 4A from the source. What current will the heater draw if the potential difference is increased to 120V